Field testing of a spread spectrum acoustic modem with sparse channel estimation. - Tatsuya Fu; Daniel Doonan; Chris Utley; Hua Lee (ICASSP, 2008)

A Flexible, Conformal Ultrasound Array for Medical Imaging. - Martin O. Culjat; Rahul S. Singh; Christopher D. Utley; Stephen P. Vampola; Behnam Sharareh; Hua Lee; Elliott R. Brown; Warren S. Grundfest (MMVR, 2008)